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Between two stations a train starting fr...

Between two stations a train starting from rest first accelerates uniformly, then moves with constant velocity and finally retarts uniformly to come to rest. If the ratio of the time taken be `1 : 8 : 1` and the maximum speed attained be `60 km//h`, then what is the average speed over the whole journey ?

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[54 kph]
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PHYSICS GALAXY - ASHISH ARORA-KINEMATICS-Practice Exercise
  1. Figure-1.20 shows displacement-time graphof a particle. Find the time ...

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  2. A train starts from station A with uniform acceleration a(1). For some...

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  3. Between two stations a train starting from rest first accelerates unif...

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  4. A partical starts from rest and moves in a straight line. It travels a...

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  5. A particle starts with an initial velocity u towards + x direction wit...

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  6. A particle moves in a straight line. Figure-1.21 shows the distance tr...

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  7. The velocityof a particle that moves in the positive X- direction vari...

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  8. The acceleration vs time of a particle moving along +x direction is sh...

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  9. The displacement x of particle moving in one dimension, under the acti...

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  10. Instantaneous velocity of a particle moving in +x direction is given a...

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  11. A street car moves rectilinearly from station A to the next station B ...

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  12. A particle moves along a staight line such that its displacement at an...

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  13. A radius vector of a particle varies with time t as r=at(1-alphat), wh...

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  14. A box is thrown with velocity v(0) on top of a rough table of length l...

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  15. A particle start revolution with initial speed u in a circular path of...

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  16. A rever 500 m wide flows at a rate at a rate of 4 km h^(-1). A swinmme...

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  17. An aeroplane takes off from Mumbai to Delhi with velocity 50 kph in no...

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  18. A man can swim at a speed of 3 km/h in still water. He wants t cross a...

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  19. Two boats, A and B, move away from a buoy anchored at the middle of a ...

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  20. A man running on the horizontal road at 8 km h^(-1) find the rain app...

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